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Stihl FS 91 Petrol Brushcutter For Landscape Maintenance with 4-MIX Engine and AutoCut C 25-2 Cutting Head

SKU: FS91
£674.00 £561.67
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Sithl Authorised Dealer and Repair Centre

Petrol brushcutter for landscape maintenance with 4-MIX engine and bike handle

The easily accessible paper filter with a long service life means it can go for long intervals without changing. The STIHL 4-MIX® engine, which runs on a fuel-oil mix just like a 2-stroke, offers the benefits without the compromises of 4-stroke power.

Stihl FS 91 Petrol Brushcutter For Landscape Maintenance with 4-MIX Engine and AutoCut C

Petrol brushcutter for landscape maintenance with 4-MIX engine and bike handle

For working on large areas of tough grass. Simplified starting, bike handle, control handle with stop button, 4-MIX® engine with larger tank for increased cutting time between filling, rigid drive shaft, Supplied with ADVANCE Universal double shoulder harness, metal grass blade and AutoCut mowing head.

Standard Features:

STIHL 4-MIX® engine
You can always rely on STIHL to keep setting new benchmarks this time with 4-stroke mixed lubrication technology. The STIHL 4-MIX® engine, which runs on a fuel-oil mix just like a 2-stroke, offers the benefits without the compromises of 4-stroke power. STIHL 4-MIX® engine technology provides fast acceleration, more power, added torque, lower noise, reduced emissions and increased fuel efficiency to complete jobs quickly, quietly and more easily.

Air filter with long service life
The easily accessible paper filter with a long service life means it can go for long intervals without changing. (similar to illustration)

Manual fuel pump (Purger)
A small fuel pump delivers fuel to the carburettor at the touch of a button. This reduces the number of starting strokes required following extended breaks in operations.

Bike handle
When used in conjunction with a harness, the bike handle enables a smooth mowing action. The bike handle allows the machine to be easily guided, making it ideal for working on large areas and thus reducing fatigue.

Anti-vibration system
Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine's engine are dampened which significantly reduces vibrations at the handles.

Multi-function handle
All the engine and speed controls are easily accessible and at your finger tips.

Tool-free handle adjustment
The handle bar can be easily adjusted to suit the users working position via the tool-free handle adjustment clamp.

ADVANCE Universal Harness
Soft padding makes work more comfortable during longer jobs.

Stop switch
The multi-function control handle features a stop switch which automatically reverts back to the start position for a quicker, simple restart.

Technical Specification:

  • Displacement: 28.4 cm³
  • Displacement: 1.73 cu-in
  • Engine power: 0.95 kW
  • Engine power: 1.3 HP
  • Engine power: 1.3 bhp
  • Weight: 5.8 kg 1)
  • Weight: 12.8 lb 1)
  • Sound pressure level: 96 dB(A) 2)
  • Sound pressure level: 94 dB(A) 2)
  • Sound power level: 107 dB(A) 2)
  • Sound power level: 104 dB(A)
  • Sound power level: 107 dB(A) 2)
  • Sound power level: 104 dB(A)
  • Vibration level, left: 5.5 m/s² 3)
  • Vibration level, right: 4.5 m/s² 3)
  • Vibration level, left: 5 m/s² 3)
  • Vibration level, right: 4.3 m/s² 3)
  • Overall length: 180 CM 4)
  • Cutting circle diameter: 420 mm
  • Tank capacity: 0.71 l
  • CO2: 877 g/kWh

1)Without fuel, cutting tool and without protection2)K-factor according to DIR 2006/42/EC = 2.5 dB (A)3)K-factor according to DIR 2006/42/EC = 2m / s ²4)Without cutting tool

More Information
MPN 4180 200 0684
Country of Manufacture Germany
EAN Barcode 886661779512
Manufacturer Stihl
Power Source Petrol Machinery
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UK Mainland Delivery

We try our best to dispatch all stock orders same day on a on a next day service. Dispatch times may vary depending on your geographical location and items ordered.

For full terms and conditions please visit our Delivery & Returns page.


Standard* delivery via courier is free for orders over £50 ex vat and under 30kg in weight.

Orders under £50 ex vat and 30kg in weight are subject to a standard* £5.83 ex vat handling and packaging fee.

Stock orders received before 12pm Monday to Friday will be processed and dispatched the same working day. Orders received after 12pm Monday to Friday will be processed and dispatched the next working day (excludes weekends). Standard delivery via courier is free for orders over £50 ex vat and under 30kg in weight. Orders under £50 ex vat and 30kg in weight are subject to a standard £5.83 ex vat handling and packaging fee. Orders over 30kg will be subject to courier or volumetric surcharges.

Orders sent direct from our suppliers are dispatched in accordance to supplier delivery terms.

Laguna: 2 - 3 days, delivery to UK mainland only. A Laguna rep will contact you by phone to arrange delivery that suits you.
Holzmann, Scheppach, Zipper and SIP: 2 - 3 days, delivery to UK mainland only, for Highlands and Islands a delivery surcharge may be applicable, call us on 0141 429 4444 to enquire before you order.

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